Pablo Diaz (1953-1985) was a Val Verdian hitman and former soldier under Alejandro Arius. Having fought in the revolution, Diaz fled Val Verde after the rebels overthrew the totalitarian government with the assistance of Colonel John Matrix and his Delta Force unit.
Years later, he became a hitman and worked alongside Bennett's Crew in assassinating Matrix's old unit. He and Jim Cooke disguised themselves as waste collectors and shot Jacob Lawson dead as he left his house. He later traveled to Mount Baldy by tracking Major General Franklin Kirby's helicopter, intending to kidnap Jenny Matrix for ransom by Arius' orders.
He ambushed Matrix and his guards as soon as Kirby flew off, instantly killing Corporal Mike Harris and wounding Corporal Bob Jackson. He later ambushed Jackson and garroted him, before going up to Jenny's room and kidnapping her, handing the girl over to Cooke's men. Diaz awaited Matrix, propping Jackson's strangled corpse against the door and sat down, holding a paper heart Jenny made for her father.
When Matrix arrived in her bedroom, Diaz calmly taunted Matrix and explained that his daughter is unharmed and that he had to cooperate. After asking him if he understood with a "right", Matrix replied with "wrong", and fired a bullet from his HK91A2 into Diaz's forehead, killing him instantly.